boo-boo

/ˈbuːˌbuː/

//ˈbuːˌbuː// noun

"boo-boo" is a 6-letter English headword indexed on PlainSpell.

The verdict

“boo-boo” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A mistake or error.

Corpus desk

Index EN-boo-boo · boo-boo · English

boo-boo · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "B" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for boo-boo
PropertyValue
Headwordboo-boo
LanguageEnglish
Part of speechNoun
IPA/ˈbuːˌbuː/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “boo-boo” sits in English frequency

boo-boo falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

boo-boo is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈbuːˌbuː/. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for boo-boo in our index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: * Possibly from bug-a-boo, an imaginary evil goblin. * Possibly from bubo, a swollen lymph node especially obvious in sufferers of bubonic plague. * Possibly from the sound a baby or young toddler might make. * Possibly borrowed from French bobo (“boo-boo”) The correct English form is boo-boo, spelled B-O-O---B-O-O.

Definition

  1. 1
    A mistake or error.
  2. 2
    A minor injury, such as a cut or a bruise.
  3. 3
    Feces.

Recorded use

Wiktionary examples

These source excerpts show how boo-boo appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Oh, gosh, golly, I made a boo-boo, and I gave it to Stephen Hawking!
  2. I been A-1 since day one, you niggas boo-boo Your home boy, your block that you're from, boo-boo Lil' hoes you went to school with, boo-boo Baby mama and your new bitch, boo-boo

Etymology

* Possibly from bug-a-boo, an imaginary evil goblin. * Possibly from bubo, a swollen lymph node especially obvious in sufferers of bubonic plague. * Possibly from the sound a baby or young toddler might make. * Possibly borrowed from French bobo (“boo-boo”)

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "boo-boo"?
"boo-boo" is spelled B-O-O---B-O-O. The IPA pronunciation is /ˈbuːˌbuː/.
What does "boo-boo" mean?
As a noun, "boo-boo" means: A mistake or error.
How do you pronounce "boo-boo"?
The IPA (International Phonetic Alphabet) transcription for "boo-boo" is /ˈbuːˌbuː/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "boo-boo"?
* Possibly from bug-a-boo, an imaginary evil goblin. * Possibly from bubo, a swollen lymph node especially obvious in sufferers of bubonic plague. * Possibly from the sound a baby or young toddler might make. * Possibly borrowed from French bobo (... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

What to do next

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Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list